Institut Penilaian Negara. (2010). Lawatan tapak loji & jentera: Puncak Niaga Holdings Berhad. Selangor: Loji Sungai Langat Batu 9, Langat.
Chicago Style CitationInstitut Penilaian Negara. Lawatan Tapak Loji & Jentera: Puncak Niaga Holdings Berhad. Selangor: Loji Sungai Langat Batu 9, Langat, 2010.
MLA CitationInstitut Penilaian Negara. Lawatan Tapak Loji & Jentera: Puncak Niaga Holdings Berhad. Selangor: Loji Sungai Langat Batu 9, Langat, 2010.
Warning: These citations may not always be 100% accurate.